diff --git a/src/gen/zsh.rs b/src/gen/zsh.rs
index 4fc397c..0c220f4 100644
--- a/src/gen/zsh.rs
+++ b/src/gen/zsh.rs
@@ -69,9 +69,9 @@ fn generate_fn(cmd: &CommandInfo, out: &mut Output, fn_name: &str) {
   out.indent();
   for flag in &cmd.flags {
     let desc = if let Some(desc) = &flag.desc {
-      desc
+      desc.replace("[", "\\[").replace("]", "\\]")
     } else {
-      ""
+      "".to_string()
     };
     for form in &flag.forms {
       let text = util::quote_bash(format!("{form}[{desc}]"));
diff --git a/tests/resources/expected/_test1.zsh b/tests/resources/expected/_test1.zsh
index 5056fea..e7902cc 100644
--- a/tests/resources/expected/_test1.zsh
+++ b/tests/resources/expected/_test1.zsh
@@ -19,7 +19,7 @@ function _test1 {
 function _test1_sub1 {
 	local line
 	_arguments -C \
-		'--foobar[Something something]' \
+		'--foobar[Something something \[brackets\]]' \
 		': :(nested)' \
 		'*::arg:->args'
 	case $line[1] in
diff --git a/tests/resources/expected/test1-completions.nu b/tests/resources/expected/test1-completions.nu
index 7b9e73f..a72b750 100644
--- a/tests/resources/expected/test1-completions.nu
+++ b/tests/resources/expected/test1-completions.nu
@@ -5,7 +5,7 @@ export extern "test1" [
 ]
 
 export extern "test1 sub1" [
-  --foobar # Something something
+  --foobar # Something something [brackets]
 ]
 
 export extern "test1 sub1 nested" [
diff --git a/tests/resources/in/man1/test1-sub1.1 b/tests/resources/in/man1/test1-sub1.1
index 632ee18..6e2dc18 100644
--- a/tests/resources/in/man1/test1-sub1.1
+++ b/tests/resources/in/man1/test1-sub1.1
@@ -9,5 +9,5 @@ test1 sub1 <- Need that for this to be picked up as a subcommand
 This should not be added
 .TP
 \-\-foobar
-Something something
+Something something [brackets]
 .UNINDENT